Molding-machine



A. DIEHL.

MOLDING MACHIrSE-` APPucATloN FILED FEB. 2. 1.920.

Patented June s, 1920.

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MOLDING MACHINE.

APPLICATION FILED FEB. 2. I920.

Patented June 8, 1920.

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A. DIEHL.

l MOLDING MACHINE.

APPucATloN FILED FEB. 2, 1920.

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@Rox m UNITED STATES PATENT omer.

ADAM PIEHL, 0F SPriNGFir-Llz.

' MOLDJIN'G-MACHINE.

`To .all .whom .it may, concern.'

Beit known that I, Anm DIEHL, la .citizen .of the United States, and a resident of Springeld, in the county `of Clark and State .of Ohio, have invented certain new and useful .Improvements in Molding-Machines, of which the following is a specification.

`My invention is an improvementfin mold.- ing machines, .and :the invention :has for its .object to .provide simple .mechanism for ilse in ,connection with such machines 4for simulrtan'eously *lifting .the cope and theimatch .plate from .the drag, wherein .the lifting mechanism is .operated by va `single lever gun.- der the control ofthe operator, and wherein the partsare -fheld parallel during the separation.

In the drawings:

Figure 1 is a side view of a molding machine provided with the, improved mechanism;

Fig. 2 is a plan view showing the connection of the cope withV the lifting mechanism;

Fig. 3 is apartial vertical section showing the arrangement of the cam shaft `and its connection with the cope and drag;

Fig. 4 is a section taken substantially on the line -l of Fig. 3.

The present embodiment of the invention is shown in connection with a mold, consisting of the usual drag 1, cope 3 and match plate 2. At each end of the match plate there is journaled a shaft 4;, each shaft being journaled in brackets 4a on the match plate, and each of these shafts carries at each end an S-shaped cam 5, the said cams having at their centers hubs which are secured on the shafts.

Each cam is arranged in a housing 6 o f substantially cylindrical form, having radlally vertically extending nipples 7 through which are slidable plungers 8, and each plunger is provided at its inner end with a roller 9 for engaging the adjacent cam 5.

Angle plates 10 and 11, respectively, are secured to the corners of the cope and drag, by means of screws 12 or the like, each plate having one portion abutting the outer face of the cope or drag and another portion extending laterally outward therefrom. The outwardly extending portion of each angle plate 10 is above the outer end of the uppermost plungers 8, and the outwardly extending portions of the angle plates of the drag extend below the lowermost plungers 8. A

Specificationof Letters Patent.

vApplica'titan.mea February' 2, 1920. [serial 110.355,545.

set screw. 13 is threaded through each ofthe .outwardlyextending portions of :the-,angle plates 10 and 11, intoengagementwith.the .end of 4the adjacent plunger, and a lock -nut 14C is provided on each set screw for holding the setfscrewV in adjusted position;

It will be obvious from the. description that when .thexshafts y4c' are oscillated, by :mechanism to be presently described, the cams which are similarly arranged .onxthe shafts. will l.be operated vto simultaneously f i movethe .plungers .8 away from theshaft orl 4toward .the shaft.l -k Since the lowermost plungers 8.oannot move downwardly because the drag is lixed, the cams and the camshafts will be moved upwardly, lifting y:the match s .plate 3 from Athe drag .and `simultaneously lifting the cope 2 from the match plate.

A lever 15 is provided Vfor simultaneously operating all of the cams. This leveris pivoted at 16 to a bracket 17 on the match plate 2, and links 18 connect this lever aboveand below its pivotal connection with radial arms 19 on the shafts 4. Referring to Fig. 1, it 'will beseenthat each link18 has a series of openings for engagement by the pin 19, which pivotally connects the link and the lever. tween the levers and the radial arms may be adjusted to vary the extent of movement of the cope and match plate with respect to the drag. The housings 6 are sectional, asl shown, the sections having .radial lugs 20v which are engaged by bolts and nuts 21, and

these housings, in practice, will be filled with a lubricant of any desired character. l

In operation, when it is desired to separateV the parts'of the flask, the lever 15 is swung in a direction to simultaneously move all of the cams in a similar manner, that is, in a manner such that all of the plungers will be simultaneously moved away from the shafts 4, and the cams are so connected to the lever that they will-be so moved. rWhen,

for instance, the grip end of the lever 15 is swung away from the left of Fig. 1 and to- Thus the aggregate distance beloo ward the right the cams will be oscillated to move the plungers outwardly, and the cope and match plate will be separated from the drag and from each other, and they will be moved apart on parallel lines.

The improvement isl an interchangeable device, which can be removed from one match plate and attached to another or others. The device is so constructed that it can be attached to match plates varying in Y with the flask, of'means for simultaneously separating the cope and the match plate from the drag andfrom each other while retaining the parts Yin parallel relation, said means comprising shafts journaled at. the

ends of the match plate and supported bythe match plate, cams secured to the ends of the shaft, plungers arranged above and below the cams andl moved by the cams, adjustable stops on the cope and drag forV engagement by the plungers, means for simultaneously moving the shafts to cause the cams to move in a direction to simultaneously move all of the plungers from the shafts, said means comprising a lever pivoted to the match plate, radial arms on the shafts, and links connecting saidarms with the lever above and below the shaft. Y

Y 2.=In molding machines, the combination with the flask, of means for simultaneously from the drag and from each other while retaining the parts in parallel relation, said V.means comprising shafts journaled at the ends of the match plate and supported by the match plate, cams secured to the ends of the shaft, plungers arranged above and below the cams and moved by the cams, adjustable stops on thecope and drag for engagement by the plungers, and means for simultaneously moving the shaftsl to cause vthe cams to move in a direction to simultaneouslymove all of the plungers away from theshafts..

3. In molding machines, the combination with; the llask, of means for simultaneously separating the cope and the ymatch plate from the drag and from each other, while retaining the parts in parallel relation, Vsaid means being carried bythe `match plate.

. '4. In molding machines, the combination with the flask, of means for simultaneously separating the cope and the match Vplate from the drag and from each other, said means being carried by the'mat'ch plate j ADAM ijiEHL.. 

